:root {
  --comnet-blue: #286295;
  --comnet-blue-light: #4A90C2;
  --legacy-gray: #D0D0D0;
  --cloud-white: #F8F8F8;
  --text: #1a1a1a;
  --muted: #555555;
  --font: "Segoe UI", -apple-system, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--cloud-white);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
}

header {
  background: var(--comnet-blue-light);
  padding: 14px 20px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
}

.header-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.header-links {
  display: flex;
  gap: 16px;
}

.header-links a {
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  opacity: 0.92;
}

.header-links a:hover { text-decoration: underline; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

h1 {
  color: var(--comnet-blue);
  font-size: 26px;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}

h2 {
  color: var(--comnet-blue);
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 28px 0 10px;
}

p, li { margin-bottom: 10px; }
ul { padding-left: 22px; }
li { padding-left: 4px; }

a { color: var(--comnet-blue); }

.card {
  background: #fff;
  border: 1px solid var(--legacy-gray);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 16px 0;
}

footer {
  border-top: 1px solid var(--legacy-gray);
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

footer a { margin: 0 8px; }